Version Control With Subversion Source

* en/book/ch03-advanced-topics.xml
State that it's 'svnrdump load' that does the locking (implying that
'svnrdump dump' does not).

Suggested by: danielsh

1.8/zh: Fix build errors after merging in r5444

1.8/zh: Merge English trunk

* en/book/ch03-advanced-topics.xml
Note the primary reason why revision datestamps get out of order.

Suggested by: Daniel Shahaf <danielsh@...>

* en/book/ch05-repository-admin.xml
Rework the warning to hook script authors to note that it's okay to
add new transaction properties, but assume everything else is
off-limits.

* en/book/ch03-advanced-topics.xml
Expand the list of "locks".

Patch by: Daniel Shahaf <danielsh@...>
(Expanded by me.)

1.8/zh: chapter 3 reviewed

1.8/zh: review of chapter 3 in progress

1.8/zh: review of chapter 3 in progress

1.8/zh: review of chapter 3 in progress